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| author | Stefan Berger <[email protected]> | 2024-03-22 14:03:12 +0000 |
|---|---|---|
| committer | Mimi Zohar <[email protected]> | 2024-04-08 11:55:47 +0000 |
| commit | be84f32bb2c981ca670922e047cdde1488b233de (patch) | |
| tree | a3c135a23ab2e801c0f2ab977e0a77d2122cdb13 /security/selinux/hooks.c | |
| parent | Linux 6.9-rc3 (diff) | |
| download | kernel-be84f32bb2c981ca670922e047cdde1488b233de.tar.gz kernel-be84f32bb2c981ca670922e047cdde1488b233de.zip | |
ima: Fix use-after-free on a dentry's dname.name
->d_name.name can change on rename and the earlier value can be freed;
there are conditions sufficient to stabilize it (->d_lock on dentry,
->d_lock on its parent, ->i_rwsem exclusive on the parent's inode,
rename_lock), but none of those are met at any of the sites. Take a stable
snapshot of the name instead.
Link: https://lore.kernel.org/all/20240202182732.GE2087318@ZenIV/
Signed-off-by: Al Viro <[email protected]>
Signed-off-by: Stefan Berger <[email protected]>
Signed-off-by: Mimi Zohar <[email protected]>
Diffstat (limited to 'security/selinux/hooks.c')
0 files changed, 0 insertions, 0 deletions